11222211121201 has 16 divisors (see below), whose sum is σ = 11954909836800. Its totient is φ = 10497728648448.

The previous prime is 11222211121151. The next prime is 11222211121271. The reversal of 11222211121201 is 10212111222211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11222211121201 - 2¹¹ = 11222211119153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11222211121271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44506 + ... + 4737763.

It is an arithmetic number, because the mean of its divisors is an integer number (747181864800).

Almost surely, 2^{11222211121201} is an apocalyptic number.

It is an amenable number.

11222211121201 is a deficient number, since it is larger than the sum of its proper divisors (732698715599).

11222211121201 is a wasteful number, since it uses less digits than its factorization.

11222211121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4783128.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 11222211121201 its reverse (10212111222211), we get a palindrome (21434322343412).

It can be divided in two parts, 1122221 and 1121201, that added together give a palindrome (2243422).

The spelling of 11222211121201 in words is "eleven trillion, two hundred twenty-two billion, two hundred eleven million, one hundred twenty-one thousand, two hundred one".